Apparatus utilizing light emitting semiconductor device

Details Apparatus utilizing light emitting semiconductor device Apparatus utilizing light emitting semiconductor device

1991-12-24

1992-10-20

Lee, John D.

Coherent light generators

Particular beam control device

Scanning

372 38, H01S 310

Patent

active

051576759

ABSTRACT:
Disclosed is an apparatus utilizing a light emitting semiconductor device which has a pumped region and an unpumped absorber region and in which an active layer has a quantum well structure. In this light emitting semiconductor device, driving current/light output characteristics have dependence on the pulse width of a driving current. A logic unit or a noise reducing apparatus is realized utilizing this property. Furthermore, in the above described light emitting semiconductor device, the central wavelength of emitted light has dependence on a driving current or dependence on driving time. A light beam scanner can be realized utilizing this property.

REFERENCES:
patent: 4733398 (1988-03-01), Shibagaki et al.
patent: 4763334 (1988-08-01), Shimada et al.
patent: 4813046 (1989-03-01), Shimada
T. Takagi et al., "Quantum Well Laser Diode With Non-Injection Region", 1989 Autum Dai 50 Kai Ouyou Butsuri Gakkai8 (JSAP) Gakujutsu Kouenaki Kouen Yokoushu, 28 p. ZL-14, Sep. 27-30, 1989.

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